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प्रश्न
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 1331 .
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उत्तर
We have:
1331
1
1330
7
1323
19
1304
37
1267
61
1206
91
1115
127
988
169
819
217
602
271
331
331
0
∵ The subtraction is performed 11 times.
∴ \[\sqrt[3]{1331} = 11\]
Thus, 1331 is a perfect cube.
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संबंधित प्रश्न
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 130 .
\[\sqrt[3]{480} = \sqrt[3]{3} \times 2 \times \sqrt[3]{. . .}\]
\[\sqrt[3]{\frac{729}{1331}} = \frac{9}{. . .}\]
\[\sqrt[3]{\frac{512}{. . .}} = \frac{8}{13}\]
Making use of the cube root table, find the cube root
0.86 .
Making use of the cube root table, find the cube root
8.65 .
Making use of the cube root table, find the cube root
833 .
Making use of the cube root table, find the cube root
34.2 .
Find the cube root of -1331.
Find the cube root of 1728.
